So many visual elements go into creating the sterile and unpleasant design of airplanes. But none is more important than those neutral-looking safety graphics that feature people who look like upside-down exclamation points. These little guys get into all kinds of mischief. Sometimes they're trying to open the emergency exits. Sometimes they're strolling around the airplane bathroom, even when they're not supposed to be.

Daquella Manera/Flickr

Sometimes there is a big red X over the sink in the airplane bathroom, with two of the upside-down exclamation points flanking it.

And -- hey -- what gives with that cigarette sign? Haven't I seen you somewhere before?

twicepix/Flickr

If you've ever taken an international flight, you may have noticed that these symbols are the same in aircraft worldwide.

In fact, they're everywhere! Ever notice how the handicapped symbol is the same from Alberta to Asunción?

¡Pa'lante! (woody1778a/Flickr)

It's not a coincidence.

But why, and wherefore, and when, and who? And how did these symbols make it onto the plane?

Let us look into their history, which began almost a century ago, and reached a turning point after World War II.

As usual, the U.S. played a key role in fostering international cooperation. You see, in 1916, Americans from a bunch of engineering trade groups founded the American National Standards Institute, or ANSI. The trade groups were getting a bit ANSI about the lack of a regulation width for pipe threads. (A real problem! It made it difficult to coordinate on major public works initiatives.) Eventually, ANSI built a set of regulations for industrial workplaces and building projects, and helped make formerly dangerous production and construction jobs much safer for workers.

After World War II ended, there was a major push towards international cooperation on foreign policy issues, one that resulted in (for example) the founding of the U.N. In 1947, a group of highly detail-oriented humanitarians got together in London to found the International Organization for Standardization, or ISO. A representative from ANSI attended, as did representatives from each of the 25 then-member nations.

The brave men and women of the ISO risked potentially morbid levels of boredom to create guidelines for everything from environmental best practices to industrial quality assurance. But the ISO was not content to just make invisible rules about stuff. They wanted to make stuff you could see with your eyes. And so they created many, many sets of symbols for use in safety and informational signs, designing them to be universally intelligible and culturally neutral.

But what about the plane part? Well. The first commercial air flight in U.S. history had happened many years earlier, on January 1, 1914. (It went from St. Petersburg, Florida, to Tampa.) The first aviation safety laws were passed in the 1920s. International travel took off in the 1940s.

You can keep your free airplane ham dinner, three-color-process people of the past. We may have to pay for every crumb of food they give us, but at least we have those inflatable life-vests that we don't know how to use because we never actually watch the instructional video. Take that! (dok1/Flickr)

In the past few decades, however, the industry has grown at an exponential rate. (In April 1997, about 40,000 flights left the U.S. for international destinations. Just 15 years later, in April 2012, about 70,000 did.) And foreigners sometimes fly U.S. domestic air, too! Unsurprisingly, there has started to be a really good chance that, at any given time, there are a lot of people in the sky on American planes who do not speak the same language.

What did the ISO do about it? Regulate! The ISO 9000 family of graphical symbols (approved over the course of the past decade) are what you see on most U.S. planes everyday.

These upside-down exclamation points keep you safe. But they are also having fun.

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Five times a day for the past three months, an app called WeCroak has been telling me I’m going to die. It does not mince words. It surprises me at unpredictable intervals, always with the same blunt message: “Don’t forget, you’re going to die.”

Sending these notices is WeCroak’s sole function. They arrive “at random times and at any moment just like death,” according to the app’s website, and are accompanied by a quote meant to encourage “contemplation, conscious breathing or meditation.” Though the quotes are not intended to induce nausea and despair, this is sometimes their effect. I’m eating lunch with my husband one afternoon when WeCroak presents a line from the Zen poet Gary Snyder: “The other side of the ‘sacred’ is the sight of your beloved in the underworld, dripping with maggots.”

The president is the common thread between the recent Republican losses in Alabama, New Jersey, and Virginia.

Roy Moore was a uniquely flawed and vulnerable candidate. But what should worry Republicans most about his loss to Democrat Doug Jones in Tuesday’s U.S. Senate race in Alabama was how closely the result tracked with the GOP’s big defeats last month in New Jersey and Virginia—not to mention how it followed the pattern of public reaction to Donald Trump’s perpetually tumultuous presidency.

Jones beat Moore with a strong turnout and a crushing lead among African Americans, a decisive advantage among younger voters, and major gains among college-educated and suburban whites, especially women. That allowed Jones to overcome big margins for Moore among the key elements of Trump’s coalition: older, blue-collar, evangelical, and nonurban white voters.

Russia's strongman president has many Americans convinced of his manipulative genius. He's really just a gambler who won big.

I. The Hack

The large, sunny room at Volgograd State University smelled like its contents: 45 college students, all but one of them male, hunched over keyboards, whispering and quietly clacking away among empty cans of Juicy energy drink. “It looks like they’re just picking at their screens, but the battle is intense,” Victor Minin said as we sat watching them.

Clustered in seven teams from universities across Russia, they were almost halfway into an eight-hour hacking competition, trying to solve forensic problems that ranged from identifying a computer virus’s origins to finding secret messages embedded in images. Minin was there to oversee the competition, called Capture the Flag, which had been put on by his organization, the Association of Chief Information Security Officers, or ARSIB in Russian. ARSIB runs Capture the Flag competitions at schools all over Russia, as well as massive, multiday hackathons in which one team defends its server as another team attacks it. In April, hundreds of young hackers participated in one of them.

Brushing aside attacks from Democrats, GOP negotiators agree on a late change in the tax bill that would reduce the top individual income rate even more than originally planned.

For weeks, Republicans have brushed aside the critique—brought by Democrats and backed up by congressional scorekeepers and independent analysts—that their tax plan is a bigger boon to the rich than a gift to the middle class.

On Wednesday, GOP lawmakers demonstrated their confidence as clearly as they could, by giving a deeper tax cut to the nation’s top earners.

A tentative agreement struck by House and Senate negotiators would reduce the highest marginal tax rate to 37 percent from 39.6 percent, in what appears to be the most significant change to the bills passed by each chamber in the last month. The proposal final tax bill would also reduce the corporate tax rate from 35 percent to 21 percent, rather than the 20 percent called for in the initial House and Senate proposals, according to a Republican aide privy to the private talks.

If Democratic candidate Doug Jones had lost to GOP candidate Roy Moore, weakened as he was by a sea of allegations of sexual assault and harassment, then some of the blame would have seemed likely to be placed on black turnout.

But Jones won, according to the Associated Press, and that script has been flipped on its head. Election Day defied the narrative and challenged traditional thinking about racial turnout in off-year and special elections. Precincts in the state’s Black Belt, the swathe of dark, fertile soil where the African American population is concentrated, long lines were reported throughout the day, and as the night waned and red counties dominated by rural white voters continued to report disappointing results for Moore, votes surged in from urban areas and the Black Belt. By all accounts, black turnout exceeded expectations, perhaps even passing previous off-year results. Energy was not a problem.

There’s a fiction at the heart of the debate over entitlements: The carefully cultivated impression that beneficiaries are simply receiving back their “own” money.

One day in 1984, Kurt Vonnegut called.

I was ditching my law school classes to work on the presidential campaign of Walter Mondale, the Democratic candidate against Ronald Reagan, when one of those formerly-ubiquitous pink telephone messages was delivered to me saying that Vonnegut had called, asking to speak to one of Mondale’s speechwriters.

All sorts of people called to talk to the speechwriters with all sorts of whacky suggestions; this certainly had to be the most interesting. I stared at the 212 phone number on the pink slip, picked up a phone, and dialed.

A voice, so gravelly and deep that it seemed to lie at the outer edge of the human auditory range, rasped, “Hello.” I introduced myself. There was a short pause, as if Vonnegut were fixing his gaze on me from the other end of the line, then he spoke.

So many people watch porn online that the industry’s carbon footprint might be worse now that it was in the days of DVDs and magazines.

Online streaming is a win for the environment. Streaming music eliminates all that physical material—CDs, jewel cases, cellophane, shipping boxes, fuel—and can reduce carbon-dioxide emissions by 40 percent or more. Video streaming is still being studied, but the carbon footprint should similarly be much lower than that of DVDs.

Scientists who analyze the environmental impact of the internet tout the benefits of this “dematerialization,” observing that energy use and carbon-dioxide emissions will drop as media increasingly can be delivered over the internet. But this theory might have a major exception: porn.

Since the turn of the century, the pornography industry has experienced two intense hikes in popularity. In the early 2000s, broadband enabled higher download speeds. Then, in 2008, the advent of so-called tube sites allowed users to watch clips for free, like people watch videos on YouTube. Adam Grayson, the chief financial officer of the adult company Evil Angel, calls the latter hike “the great mushroom-cloud porn explosion of 2008.”

In The Emotional Life of the Toddler, the child-psychology and psychotherapy expert Alicia F. Lieberman details the dramatic triumphs and tribulations of kids ages 1 to 3. Some of her anecdotes make the most commonplace of experiences feel like they should be backed by a cinematic instrumental track. Take Lieberman’s example of what a toddler feels while walking across the living room:

When Johnny can walk from one end of the living room to the other without falling even once, he feels invincible. When his older brother intercepts him and pushes him to the floor, he feels he has collapsed in shame and wants to bite his attacker (if only he could catch up with him!) When Johnny’s father rescues him, scolds the brother, and helps Johnny on his way, hope and triumph rise up again in Johnny’s heart; everything he wants seems within reach. When the exhaustion overwhelms him a few minutes later, he worries that he will never again be able to go that far and bursts into tears.

In analyzing Doug Jones’s surprise win, the pundit-in-chief misconstrues the race and elides his own role in Moore’s defeat.

Doug Jones’s victory in the U.S. Senate race in Alabama on Tuesday poses a quandary to Republicans at all levels—but to none more than President Trump. The results of the race demonstrate the limitations of both his political power and of his self-appointed role as pundit-in-chief. He is more interested in being right than in winning—but on Tuesday, he did neither.

The president offered a series of somewhat contradictory responses to the race between Tuesday night and Wednesday morning. Late Tuesday, he tweeted:

Congratulations to Doug Jones on a hard fought victory. The write-in votes played a very big factor, but a win is a win. The people of Alabama are great, and the Republicans will have another shot at this seat in a very short period of time. It never ends!

Will the vice president—and the religious right—be rewarded for their embrace of Donald Trump?

No man can serve two masters, the Bible teaches, but Mike Pence is giving it his all. It’s a sweltering September afternoon in Anderson, Indiana, and the vice president has returned to his home state to deliver the Good News of the Republicans’ recently unveiled tax plan. The visit is a big deal for Anderson, a fading manufacturing hub about 20 miles outside Muncie that hasn’t hosted a sitting president or vice president in 65 years—a fact noted by several warm-up speakers. To mark this historic civic occasion, the cavernous factory where the event is being held has been transformed. Idle machinery has been shoved to the perimeter to make room for risers and cameras and a gargantuan American flag, which—along with bleachers full of constituents carefully selected for their ethnic diversity and ability to stay awake during speeches about tax policy—will serve as the TV-ready backdrop for Pence’s remarks.